GETTING MY BIREFRINGENT CRYSTAL TO WORK

各向异性透明晶体如方解石、石英等的折射率，是其固有的特性，称为永久双折射。The lessen part in the Michel-Levy chart (x-axis) marks the orders of retardation in multiples of somewhere around 550 nanometers. The area among zero and 550 nanometers is known as the very first get of polarization shades, as well as the